How to carry out replacement: Thermostat E 2.0 (201.024) Mercedes W201
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Change Mercedes W201 E 2.0 (201.024) Thermostat yourself – manuals and video tutorials

How to change engine thermostat on Mercedes W201 – replacement guide

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When to replace the Thermostat on your MERCEDES-BENZ 190
Recommended replacement interval for the part category Thermostat : 50000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ 190 (W201) E 1.8 (201.018), MERCEDES-BENZ 190 (W201) 2.0 (201.022), MERCEDES-BENZ 190 (W201) E 2.0 (201.024), MERCEDES-BENZ 190 (W201) 2.0 (201.023), MERCEDES-BENZ 190 (W201) 2.0 (201.023), MERCEDES-BENZ 190 (W201) E 2.0, MERCEDES-BENZ 190 (W201) E 2.0 (201.024), MERCEDES-BENZ 190 (W201) E 2.3 (201.028) … View more

The steps may slightly vary depending on the car design.

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Published on: 27/06/2023
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All the parts you need to replace – Thermostat for 190 (W201) and other MERCEDES-BENZ models
Alternative products
How to change Thermostat on Mercedes W201 E 2.0 (201.024) – step-by-step instructions for straightforward car repair Thermostat
Tools
Replacement: engine thermostat – Mercedes W201. Tools you might need:
Wire brush
All-purpose cleaning spray
Torque wrench
Combination spanner #10
Drive socket # 7
Drive socket # 8
Drive socket # 10
Ratchet wrench
Long nose pliers
Funnel
Fluid container
Fender cover
Buy tools
Replacement: engine thermostat – Mercedes W201. AUTODOC recommends:
  • Check the condition of the coolant every time you replace the thermostat. Change the coolant if necessary.
  • Please note: all work on the car – Mercedes W201 – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    How to change Thermostat on Mercedes W201 1982 - free PDF and video manuals
    Open the bonnet.
  2. Step 2
    How to replace MERCEDES-BENZ 190 (W201) E 2.0 (201.024) 1983 Thermostat - step-by-step manuals and video guides
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
  3. Step 3
    Unscrew the coolant reservoir cap.
    Step 4
    Lift the car using a jack or place it over an inspection pit.
    Step 5
    Prepare a container for fluids.
    Step 6
    Mercedes W201 E 1.8 (201.018) 1984 Thermostat replacement: free workshop manuals
    Open the coolant drain tap.
  4. Step 7
    Changing Thermostat on MERCEDES-BENZ 190 (W201) E 2.0 1985 by yourself
    Drain the coolant from the engine.
    Replacement: engine thermostat – Mercedes W201. AUTODOC experts recommend:
    All work should be done with the engine stopped.Wait until the coolant has completely flowed out of the drain hole.
  5. Step 8
    Close the coolant drain tap.
    Step 9
    How to remove MERCEDES-BENZ 190 D 2.5 (201.126) 1986 Thermostat - online easy-to-follow instructions
    Loosen the clamp of the expansion tank hose. Use a drive socket #7. Use a ratchet wrench.
  6. Step 10
    How to replace Thermostat on MERCEDES-BENZ 190 (W201) 1987: download PDF manuals and video instructions
    Detach the expansion tank hose from the thermostat housing.
  7. Step 11
    How hard is it to do yourself: Thermostat replacement on Mercedes W201 E 2.3 (201.028) 1988 - download illustrated guide
    Detach the coolant hose.
  8. Step 12
    Need to know how to renew Thermostat on MERCEDES-BENZ 190 1989? This free workshop manual will help you to do it yourself
    Unscrew the thermostat housing fasteners. Use a drive socket #10. Use a ratchet wrench.
  9. Step 13
    Changing of Thermostat on Mercedes W201 1990 won't be an issue if you follow this illustrated step-by-step guide
    Remove the fastening bolts.
  10. Step 14
    MERCEDES-BENZ 190 E 2.0 (201.024) Thermostat replacement: online guides and video tutorials
    Remove the thermostat together with the housing.
    Replacement: engine thermostat – Mercedes W201. Professionals recommend:
    Caution! Coolant may leak out of the coolant lines and thermostat housing.
  11. Step 15
    Replacing Thermostat on Mercedes W201 1992 E 2.0 (201.024) by yourself
    Clean the thermostat housing mounting seat. Use all-purpose cleaning spray.
  12. Step 16
    Clean the thermostat mounting seat. Use a wire brush. Use all-purpose cleaning spray.
    Step 17
    190 (W201) D 2.5 (201.126) 1993 Thermostat DIY replacement workshop manual
    Install a new thermostat.
  13. Step 18
    How to change Thermostat on MERCEDES-BENZ 190 (W201) 1982 - tips and tricks
    Install the thermostat housing.
    Replacement: engine thermostat – Mercedes W201. Tip from AUTODOC experts:
    Be sure to use a new O-ring when installing the sensor.
  14. Step 19
    Step-by-step recommendations for DIY replacement Mercedes W201 1983 D 2.5 (201.126) Thermostat
    Install the fastening bolts.
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DIY MERCEDES-BENZ 190 (W201) Thermostat replacement - online guide
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